Plastic upvc pneumatic ball valve

Body

Nominal diameter: dn15-50

Body material: Plastic UPVC

Connection type: Double union

Pressure class: PN1.6MPa, PN1.0MPa

Structure type: Floating ball core

3 way L-type/ T-type ball valve

Valve components

Seat seal: PTFE: -20°～180℃

Core material: Platic upvc

Stem material: SS304, SS410

Applicable medium: Water, liquids, gas, oil, acid and alkali corrosive medium

Pneumatic actuator

Double acting: Air to open, air to close, air supply failure to keep the current position

Single acting air to open type: Air to open, interrupt air to close, air failure to close

Single acting air to close: Air to close, interrupt air to open, air failure to open

Optional accessory: Reversing solenoid valve, limit switch box, air filter reducing valve, positioner, handle manual, lock up valve

Electrical part can be chose explosion-proof type

Outline size drawing:

UPVC pneumatic ball valve pictures:

Pneumatic actuator working principle:

Double acting (POADA):

(Counterclockwise)

Compressed air to Port 2 forces the pistons outwards, causing the output shaft to turn

counterclockwise, while the air is being exhausted from Port 4.

(Clockwise) Air to Port 4 forces the pistons inwards, causing the pinion to turn clockwise

while the air is being exhausted from Port 2.

Single acting (POASR):

(Counterclockwise)

Compressed air to Port 2 forces the pistons outwards, causing the springs to compress,

the pinion counterclockwise while air is being exhausted from Port 4.

(Clockwise)

Loss of air pressure, the stored energy in the springs forces the pistons inwards,

the pinion turns clockwise, while air is being exhausted from Port 4.